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Large 25mm Knurled Aluminium Control Knob

Large 25mm Knurled Aluminium Control Knob

A large aluminium control knob with a knurled side surface and engraved position indicator. This knob features a thick metal body and a 5.8mm hole for a strong friction fit to a 6mm shaft.
Colour
Quantity Unit Price
1+ £3.64
2+ £2.912
5+ £2.73
10+ £2.548
20+ £2.5116
50+ £2.4388
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Fitting

Knob TypeRotary
Shaft TypeRound
Shaft FixingPush-Fit
Hole Size5.8mm

Appearance

Identity ColourSilver
Body ColourSilver
Accent Colour
Position Indicator ColourGrey
Position Indicator ShapeTriangle

Measurements

Minimum Shaft Depth5.9mm
Maximum Shaft Depth11.2mm
Body Diameter25.0mm
Maximum Diameter25.0mm
Widthmm
Lengthmm
Height15.3mm
Additional Measurements
Unit Weight14.38g
Large 25mm Knurled Aluminium Control Knob

Hole Type

Round Hole

A knob designed for a round shaft has a smooth, cylindrical hole that matches the shaft's shape. This type of hole allows the knob to slide easily onto the shaft, relying on a grub screw / set screw or friction to keep it in place. This design is widely used in audio equipment, consumer electronics, and control panels due to its simplicity and versatility

A knob with a round hole can typically also be used on a D type shaft in the 180° position (where the position indicator is opposite to the flat of the D) and can often also be mouned to splined shafts in low torque applications.

A View from the underside of the knob when fitting a round hole knob to a D shaft, showing the grub screw position relative to the position indicator:

Measuring Rotary Knobs

Read more about measuring rotary knobs here.